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    I'm not an expert from the technical standpoint,...

    I'm not an expert from the technical standpoint, but will venture that the relevant feature of tube amps for woofers designed in the tube amp era is the transformer output, not the tubes. That is,...
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    In my experience the answer to the general...

    In my experience the answer to the general question about signal processing is to choose high quality components and minimize the path, especially in the treble frequency range. Therefore, even...
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    The woofer in the photo doesn't have a 2235...

    The woofer in the photo doesn't have a 2235 surround.
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    My best LANSING HERITAGE find was Altec, not JBL,...

    My best LANSING HERITAGE find was Altec, not JBL, and came years ago. I responded to an ad for unused custom PA cabs. When I got to the address the story that emerged was that these two fellas had...
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    Hello--Welcome to the LH forums. I'll try to...

    Hello--Welcome to the LH forums. I'll try to answer your question, though I have no direct experience with that speaker. As poster mbotts indicated in post No. 25 above, when building a new crossover...
  6. There are threads here with ideas about packing...

    There are threads here with ideas about packing for shipping. Some of them turned into debates.

    If there is a JBL authorized reconer near you, ask them to save some boxes the cone kits are sent...
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    I don't know exactly when the real kits were...

    I don't know exactly when the real kits were discontinued, but I'm pretty sure it hasn't been twenty years-- more like five. Point being NOS kits do show up once in awhile, and it might be...
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    As is often the case with diy they were...

    As is often the case with diy they were experimentally adjusted. The best information I have is:

    GT: 80, 750 or 800, and 10k

    W's. GMO's: 60, 650 to 950, 10-12k.
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    The 1200fe is not a midcone; it's a woofer; using...

    The 1200fe is not a midcone; it's a woofer; using it enables a lower low entry frequency. I'm guessing the point of his diy experiment was to hear what that would sound like; that would be mine.
    ...
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    Oh, yes. I remember now listening to those...

    Oh, yes. I remember now listening to those towering MTM's. The consensus was we didn't like it; as I remember it had a big hunk in the upper bass. After we reported back to the forum people began...
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    I wouldn't be surprised if there are a number of...

    I wouldn't be surprised if there are a number of potentially interesting and exciting developments now abandoned at jBL under the present regime of axing away R and D, down selling brand names,...
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    He didn't explain (in my hearing), but I believe...

    He didn't explain (in my hearing), but I believe the answer would be in the literature around the introduction of the 4430 and 4435 monitors. For the Project May we had been given four woofers and...
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    And, come to think of it, Widget's Grand Master...

    And, come to think of it, Widget's Grand Master Ones, which may have been precedent.

    GT's diy: 1500AL sub, 1200fe, horn plus supertweeter.
    Widget's GMO's: sub1500, TAD 1102, horn plus...
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    And, come to think of it, Widget's Grand Master...

    And, come to think of it, Widget's Grand Master Ones, which may have been precedent.

    GT's diy: 1500AL sub, 1200fe, horn plus supertweeter.
    Widget's GMO's: sub1500, TAD 1102, horn plus...
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    Augmented 12" two-way: GT's diy.

    Augmented 12" two-way: GT's diy.
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    Augmented 12" two-way: GT's diy.

    Augmented 12" two-way: GT's diy.
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    I agree that may feel like a small space, so the...

    I agree that may feel like a small space, so the bass should be carefully managed. I would try to avoid a prominent knee. As GT said in the context of designing speaker systems for the Japanese...
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    JBL's need in the late fifties and into the...

    JBL's need in the late fifties and into the sixties when the LE10 and LE14 came on line was for speakers with good bass in smaller cabinets to meet the sometimes conflicting needs of two-speaker...
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    There's also there option of giving the LE14A...

    There's also there option of giving the LE14A some more room to work lower.
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    When laying a big heavy speaker like that on its...

    When laying a big heavy speaker like that on its back I place a paperback book under the top edge, so that when it comes time to right it I can get my fingers under it. Salmon Rushdie's Midnight's...
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    Come to think of it, I have to take this back. ...

    Come to think of it, I have to take this back. They came to me double boxed in one box, but I decided it was too much of a box. I shipped them in individual double boxes. I did get the note,...
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    Belts and suspenders: No manufacturer uses...

    Belts and suspenders:

    No manufacturer uses plywood as far as I know. They ship a lot of speakers; the numbers and experience tell them what's necessary.

    Your method of fitting plywood...
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    I just remembered. Some people use expanding...

    I just remembered. Some people use expanding foam in a plastic bag that shapes itself around the woofer in the box. Then cover the cone with stout cardboard. Easy peasy. I went looking for the...
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    I don't put the woofers face to face. I don't...

    I don't put the woofers face to face. I don't pack for Armageddon, just some jouncing, being tossed and dropped.

    I understand the question, but with the inner boxes packed as I described I don't...
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    Because it takes up space and adds weight and...

    Because it takes up space and adds weight and provides no cushioning, I don't use plywood except for protecting cones that are irreplaceable, and not always then. If you want to use plywood, 3/4" is...
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